Auto-merging via docker-versions-create

# Conflicts:
#	.circleci/config.yml

.circleci/config.yml

@@ -0,0 +1,25 @@
+version: 2
+jobs:
+  minecraft_server:
+    docker:
+      - image: circleci/buildpack-deps:stable
+    steps:
+      - checkout
+      - setup_remote_docker
+      - run:
+          name: Build image
+          command: docker build -t itzg/minecraft-server:${CIRCLE_BRANCH} .
+#      - run:
+#          name: Build arm v7 image
+#          command: docker build -t itzg/minecraft-server:${CIRCLE_BRANCH}-arm-v7 --platform linux/arm/v7 --build-arg ARCH=armv7 .
+
+workflows:
+  version: 2
+  build:
+    jobs:
+      - minecraft_server:
+          filters:
+            branches:
+              ignore:
+                - armv7
+                - multiarch

.github/workflows/build-multiarch.yml

@@ -0,0 +1,25 @@
+name: Build and publish multiarch
+on:
+  push:
+    branches:
+      - multiarch
+    tags:
+      - "[0-9]+.[0-9]+.[0-9]+-multiarch"
+
+jobs:
+  docker-buildx:
+    runs-on: ubuntu-latest
+    steps:
+      - name: Checkout
+        uses: actions/checkout@v2.2.0
+      - name: Get branch name
+        uses: nelonoel/branch-name@v1
+      - name:  Docker Buildx
+        uses: ilteoood/docker_buildx@1.0.4
+        with:
+          publish: true
+          imageName: itzg/minecraft-server
+          tag: ${{ env.BRANCH_NAME }}
+          dockerHubUser: ${{ secrets.DOCKER_USER }}
+          dockerHubPassword: ${{ secrets.DOCKER_PASSWORD }}
+

Dockerfile

@@ -1,4 +1,4 @@
-FROM adoptopenjdk/openjdk8-openj9:alpine-nightly
+FROM adoptopenjdk/openjdk8-openj9:alpine
 
 LABEL org.opencontainers.image.authors="Geoff Bourne <itzgeoff@gmail.com>"